cassette case parts bins

Inspired by other up-cycling of CD cases, I created this parts storage bin that can be used in old audio cassette tape cases.

Since various manufacturers added ribs at different locations to support the audio cassette, I had to allow different cutouts along the top which may make is less desirable for thin parts in the version of the bin with the divider.

Certainly, other divider configurations are possible, and the unneeded ribs and locating features could be removed from the case to maximize potential.

The bins could be glued to the one half of the case if desired.